摘要：It is easier to go down a hill than to climb up a hill , so it is easier to fall into bad habits than to form good 46 . Bad habits do not come 47 They come little by little while people do not notice their danger . Schoolboys first pick up little bad habits in schools and in the streets . When they can’t finish their 48 , they copy from their classmates . If they see bigger boys 49 , they 50 like to learn to smoke , too . When they 51 bigger , their habits become so strong that they can not 52 get rid ofthem . From copying , they fall behind , then learn to steal , and smoking is 53 for their health . At last they become 54 . How necessary it is that we get rid of the bad habits at the 55 . 46. A. one B. ones C. once D. these 47. A. first B. last C. slowly D. suddenly 48. A. homework B. book C. writing D. reading 49. A. reading B. smoking C. playing D. copying 50. A. would B. had C. is going to D. are 51. A. grow B. find C. notice D. seem 52. A. long B. longer C. any D. not 53. A. good B. helpful C. bad D. hard 54. A. bader and bader B. worst and worst C. worse and worse D. bader and worse 55. A. begin B. end C. begining D. beginning

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